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Old 08-12-2019, 11:18 AM   #8
1971Stepside
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Join Date: Mar 2002
Location: Springfield, MO
Posts: 2,930
Re: Help with LS swap radiator hose

Here is what I used with my 6.0 and Entropy.

Upper Gates 21439
Lower Gates 20687

Had to cut the lower, but they both fit great. You can look at my build thread to see them
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1971 C10 Stepside. LSx 6.0 with BTR Stage IV, Speed Engineering Headers, 4L80e transmission w/3200 Circle-D Stall. 3.73. Posi. Purchased this truck when I was 17. I started the rebuild (or take apart) in 1993. I have drug it around all over the country in pieces. Finally back on the road in 2021.

"I can't complain, but sometimes I still do. Life's been good to me so far."
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